talk all you want, when shit gets wrong only hackers get sued and harassed while you sit and enjoy your beer or whatever, it is a risky business and i find nothing wrong with what they do.
cover your ass first before you help others , this is how sane people conclude actions.
1. Post private key to obscure site on Freenet, Tor, GNUnet, etc.
2. Drive far away to somewhere with open wifi
3. Send a message somewhere to someone, letting them know the key is there
Assuming you secure your anonymity through steps 1, 2, and 3, there's no risk. If anything Nintendo would sue people who further publicized it, which would dilute the risk considerably. Sony vs. Geohot in the PS3 era was not done with much subtlety - Mr. Hotz didn't take steps to protect himself.
And, it was settled out of court. With ACLU / EFF backing, perhaps the courts would side with the hacker.